The Observer homeworld is the home to The Observers, a race of semi-omnipotent beings. The Observers sent Mike and the Bots films from the planet, while they experimented on them, as well as Pearl Forrester and Professor Bobo.

The planet was accidentally destroyed by Mike Nelson when he was trying to create a distraction. Pearl and Bobo escape, taking one Observer along with them in The Widowmaker.

Eventually, the Observers reformed their planet and came for Brain Guy, but he tricked them into becoming Wisconsinites and he did not return to the reformed planet.